Home / 18,439,489.20-27,659,233.80-7,800,538.80

Finding the Fourth Proportional to 18,439,489.20, 27,659,233.80 and 7,800,538.80

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Solution

The fourth proportional to 18,439,489.20, 27,659,233.80 and 7,800,538.80 is: 11,700,808.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439,489.20 : 27,659,233.80 = 7,800,538.80 : x
  2. Step 2: Convert to fraction form
    18,439,489.20/27,659,233.80 = 7,800,538.80/x
  3. Step 3: Cross multiply
    18,439,489.20x = 27,659,233.80 × 7,800,538.80
  4. Step 4: Simplify right side
    18,439,489.20x = 215,756,926,435,171.44
  5. Step 5: Solve for x
    x = 215,756,926,435,171.44/18,439,489.20
  6. Step 6: Final answer
    x = 11,700,808.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.